powersoft kaesop user manual

22 Pages·2010·1.31 MB·English

by  Andrea Taglia

POWERSOFT KAESOP
USER MANUAL

EDITION January 2010
Rev. 2.0
All copyright and industrial rights in this document and in the technical knowledge it contains
are owned by Powersoft and/or the third parties rightfully concerned.
No part of this document nor any data herein shall be disclosed, reproduced or used for any
purpose whatsoever without the prior written consent of POWERSOFT as foreseen by the law.
Drawings and specifications are subject to change.

All trademarks and registered trademarks are the property of their respective holders.

Printed in Italy.
9105.POWE IT-26437
UNI EN ISO 9001:2000
REVISIONS

REVISION DATE REVISION PURPOSE Signed by
1.0 07/2008 1st Edition T Morganti
09/2008 Forwanding functionality explained, T Morganti
1.1
suggested topologies.
10/2008 Added pictures, block diagram, T Morganti
1.2
definitions
T Morganti
10/2008 Added AESOP introduction (to be
1.3 A Taglia
reviewed). Clarify, correct.
1.4 10/2008 Reviewed introduction. T Morganti
T Morganti
1.5 11/2008 Minor changes
A Taglia
1.6 05/2009 Updated to last FW changes. Pictures. T Morganti
1.7 07/2009 New IfNoLink parameter T Morganti
T Morganti
1.8 11/2009 Reviewed images and text
A Taglia
T Morganti
1.9 11/2009 Updated text and index
A Taglia
T Morganti
2.0 01/2010 Updated text and index
A Taglia

3
9105.POWE IT-26437
UNI EN ISO 9001:2000

PAGE INTENTIONALLY LEFT BLANK

4
9105.POWE IT-26437
UNI EN ISO 9001:2000
SUMMARY

LEGEND 6
TIPYCAL SET-UP 7
INTRODUCING AESOP 8
AES3 & Ethernet Simple Open Protocol 8
Control 8
Audio 8
RJ45 pin-out 9
KAESOP block diagram and features 9
KAESOP SETTINGS 11
KAESOP submenu 11
Device mode 12
Addressing mode 12
Set address 12
Show net config 12
Audio-Source selection 13
Audio-source mode 13
Audio-Gain trim 13
Audio-No link 13
CABLING OPTIONS 13
Exploiting forward functionality 16
Daisy chain 17
Redundant ring 18
Dual redundant ring 19
APPENDIX FOR DEVELOPERS 20
Developer’s introduction to AESOP 20
Control 20
Audio 21
Active cable termination and fault bypass 21

5
9105.POWE IT-26437
UNI EN ISO 9001:2000
LEGEND

K/K-Light Series Front Panel

PORT 1 PORT 2
K/K-Light Series Rear Panel

PORT 3 AES3
(AUX) INPUT

PORT 4
(AUX)

i-Series Front Panel

i-Series Rear Panel

AES3
PORT1 INPUT

PORT 2 AUXILIARY
AES3 INPUT

AES3 STREAM A

AES3 STREAM B

ETHERNET

KAESOP SIGNAL (AES3A+AES3B+ETHERNET)

ETHERNET SWITCH

6
9105.POWE IT-26437
UNI EN ISO 9001:2000
STANDARD IMMEDIATELY AFTER LINK FAILURE

RESTORED AUDIO & CONTROL STREAMING

7
9105.POWE IT-26437
UNI EN ISO 9001:2000
INTRODUCING AESOP: AES3 & Ethernet Simple Open Protocol

Powersoft AESOP is aimed to cope with high reliability live applications in harsh environments
where Quality Of Service has to be guaranteed.
EMI and RFI in a high power audio and light system must not degrade audio quality or cause a
control link loss. Also a single failure, either cable or device, should not affect the system
performance.

User's introduction to AESOP
Each AESOP device (K-Series amplifier or, coming soon, power module controller) is equipped
with two RJ-45 connectors for daisy-chaining. The last device in a chain can be connected back
to the audio/control source device, which provides a redundant path for both audio and data.

CONTROL
Control is implemented by 100 Mbit Ethernet connectivity with auto-sense. The dual port
design allows for daisy chain and redundant ring topologies. The fault bypass feature takes into
account the possibility to loose an intermediate device or having a faulty cable link without
compromising the ring integrity.
Each device can use a static IP address, assigned by the user, or can be set to automatically
configure itself without user intervention.
A discovery feature is used by the control software to find and identify each connected device,
including the eventually wrongly configured ones.
The KAESOP board detects bad quality connections by counting errors on the Ethernet control
ports and switches them automatically from 100Mbit/s to 10Mbit/s to keep the link active also
in the worst cases.
Please note that even if crossed Ethernet cables would work control wise they will not allow the
AES3 streams to flow correctly, so please NEVER USE Ethernet crossed cables with KAESOP!

AUDIO
Audio is distributed to devices by AES3 streams carried by the two CAT5 wire pairs which are
unused in 100 Mbit Ethernet protocol.
AES3 is a license free well recognized standard with recognized low-latency, reliability and
audio quality.
For each of the two AES3 signals, a bidirectional transceiver with fault bypass has been
implemented to repeat the AES3 signal to the next devices in the chain.
When the device is powered off or unavailable, a passive high frequency relay circuit passes
through the signal, assuring the ring integrity. When the device is powered up, it chooses the
most appropriate direction and bypass the relay, re-buffering actively the AES signal. The
direction is maintained until errors are detected on the AES3 receiver circuit. When errors or
link failure are detected, the direction is swapped, to build-up a new path for the audio. In a
fraction of a second (no more than 50ms), some of the devices in a ring will swap to the other
direction, restoring the audio streaming.
8
9105.POWE IT-26437
UNI EN ISO 9001:2000

RJ45 PINOUT
PORT 1 PORT 2 (identical)
1: 100BaseT AutoMDI RX/TX+ 1: 100BaseT AutoMDI RX/TX+
2: 100BaseT AutoMDI RX/TX- 2: 100BaseT AutoMDI RX/TX-
3: 100BaseT AutoMDI TX/RX+ 3: 100BaseT AutoMDI TX/RX+
4: AES3-A RX/TX+ 4: AES3-A RX/TX+
5: AES3-A RX/TX- 5: AES3-A RX/TX-
6: 100BaseT AutoMDI TX/RX- 6: 100BaseT AutoMDI TX/RX-
7: AES3-B RX/TX+ 7: AES3-B RX/TX+
8: AES3-B RX/TX- 8: AES3-B RX/TX-

When node is powered off, each pin on PORT 1 is connected passively to the same pin on
PORT 2 with insertion loss of less than 2 dB (< 2dB).
Please note that even if crossed Ethernet cables would work control wise they will not allow the
AES3 streams to flow correctly, so please NEVER USE Ethernet crossed cables with KAESOP!

1. KAESOP BLOCK DIAGRAM AND FEATURES

The KAESOP board brings Ethernet remote control to K/K Light/i-Series amplifier.
KAESOP board brings as well digital audio input to the amplifiers, accepting one of the two
AES streams contained in the CAT5 cable as well as accepting the AES digital input from
channel 2 rear panel XLR input.
Block diagram

9
9105.POWE IT-26437
UNI EN ISO 9001:2000
Definition of Terms:
AES3A STREAM, AES3B STREAM: streams from AESOP CAT5 network
REAR AES3 STREAM: stream from CH2 XLR with AES/EBU selected, rear amplifier panel
PORT 1, PORT 2: main Ethernet control ports + 2 x AES on K/K Light/i series amplifiers
PORT 3, PORT 4: auxiliary ports (only Ethernet control, no fault bypass) only on K/K Light series
amplifiers as i Series amplifiers have just 2 RJ45 ports

The features of the current KAESOP release are:
(cid:57) two main Ethernet control ports with passive hardware bypass for safe daisy chain
connection
(cid:57) two auxiliary standard Ethernet control ports
(cid:57) all Ethernet ports are auto-sense, 10/100Mbps
(cid:57) Ethernet redundancy handling by managed switch, any topology allowed (single and
multiple ring, mesh, ...)
(cid:57) IP protocol based remote control
(cid:57) max cable length 100m (80m in case of intermediate failed node)
(cid:57) two main AES3 audio thru CAT5/RJ45 with hardware bypass for safe daisy chain
connection
(cid:57) ring connection redundancy
(cid:57) one auxiliary AES3 audio thru rear panel CH2 input XLR connector
(cid:57) AES3 audio forwarding from rear CH2 XLR input to one or both of the two main AES3
streams
(cid:57) amplifier input can be fed by one of the three AES3 streams
(cid:57) stereo mode or mono (ch 1 or ch2 input will feed both amplifier channels) mode
(cid:57) 24 bit 32/44.1/48/96 kHz sampling rate (2 AES3 streams=4 analog audio channels)
(cid:57) high performance audio DAC, 120dB(A) SNR, <0.005% THD
(cid:57) low network latency (3 samples – 32us @ 96kHz)

10